Roberta Cicora, 58, most recently of Johnville, N.Y., was charged in 2011 in U.S. District Court with sending threatening letters in envelopes also containing white powder to the lawmakers and to a Franklin County courthouse and to the Franklin County jail.

Cicora was apparently disgruntled over how a court case involving her boyfriend was being handled.

The powder was found to be harmless.

During a court hearing in August when a magistrate judge had revoked Cicora's bail and prepared to jail her until sentencing, Cicora slashed her arm with a tiny razor she had hidden in her bra, according to federal officials.

A courtroom observer said Cicora yelled out "I've got other letters set up and you're all going down!" as she cut herself.

In preparation for her sentencing on Thursday, Cicora submitted a letter to District Judge Michael A. Ponsor saying that she never meant any harm by the letters and felt isolated and at her wit's end over her boyfriend's plight.

"It was never my intention to cause anyone fear or distress. That is not who I am," she said in a neatly hand-written letter to Ponsor.

One of the letters to Coakley, read, in part: “Karma is see you next Tuesday just like you have fun with that.”

To Brown, she wrote: "I have asked for the scales to be balanced against you and yours for taking the life away from me and mine,” according to court records.